Park at the Bisse du Torrent Neuf car park (Car Park P1) and follow the signs to the irrigation channel. Please note that there is a second car park further down, which also provides all the information you need to reach the starting point.
From the car park (S), follow the signs to the start of the bisse at the Vouasseurs refreshment bar (1), then continue on a return walk to the Chalet de Brac (2) following the historic route of the Bisse du Torrent Neuf.